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Journal of Photonics for Energy • Open Access

Photon management in solution-processed organic light-emitting diodes: a review of light outcoupling micro- and nanostructures
Author(s): Guillaume Gomard; Jan B. Preinfalk; Amos Egel; Uli Lemmer

Paper Abstract

To allow a greater acceptance in the display and lighting markets, organic light-emitting diode (OLED) technology is currently the subject of intensive research efforts aimed at manufacturing cost-effective devices with higher efficiencies. In this regard, strategies matured in the field of photonics and nanophotonics can be applied for photon management purposes to improve the outcoupling of the generated light and to control the emission pattern. In this review, we report on the recent experimental and numerical advances to pursue those goals by highlighting the example of bottom-emitting devices. The cases of periodical micro- and nanostructures, as well as of stochastic ensembles that can be easily implemented using printing techniques, are covered herein. It is shown that beyond the sole optical properties, such additional elements can simultaneously improve the electrical characteristics of solution-processed OLEDs, and thus enable an optimization of the devices at different levels.

Paper Details

Date Published: 19 August 2016
PDF: 19 pages
J. Photon. Energy 6(3) 030901 doi: 10.1117/1.JPE.6.030901
Published in: Journal of Photonics for Energy Volume 6, Issue 3
Show Author Affiliations
Guillaume Gomard, Karlsruhe Institute of Technology (KIT) (Germany)
Karlsruhe Institute of Technology (KIT) (Germany)
Jan B. Preinfalk, Karlsruhe Institute of Technology (KIT) (Germany)
Amos Egel, Karlsruhe Institute of Technology (KIT) (Germany)
Karlsruhe Institute of Technology (KIT) (Germany)
Uli Lemmer, Karlsruhe Institute of Technology (KIT) (Germany)
Karlsruhe Institute of Technology (KIT) (Germany)


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